Patents by Inventor Hee Jin RYU

Hee Jin RYU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vehicular heat management system
    Patent number: 12275287
    Abstract: The present invention relates to a vehicular heat management system capable of inducing an increase in refrigerant superheat degree without unconditionally turning off a compressor when the refrigerant superheat degree on the discharge side of a chiller is less than or equal to a lower limit value. The vehicular heat management system includes: a compressor; a condensing heat exchanger; an expansion valve; an evaporation heat exchanger; and a control part configured to, when a refrigerant superheat degree on a discharge side of the evaporation heat exchanger is lowered to a predetermined lower limit value or less, control, step by step, at least two devices directly involved in the increase and decrease of the refrigerant superheat degree to increase the refrigerant superheat degree until the refrigerant superheat degree exceeds the lower limit value.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: April 15, 2025
    Assignee: HANON SYSTEMS
    Inventors: Dae Yeop Jeong, Chul Soon Kim, Sang Jun Yoo, Hong Rae Jung, Tak Jun Kim, Goong Jun Nam, Hee Jin Ryu, Jae Woo Lee
  • VEHICULAR HEAT MANAGEMENT SYSTEM
    Publication number: 20230173873
    Abstract: The present invention relates to a vehicular heat management system capable of inducing an increase in refrigerant superheat degree without unconditionally turning off a compressor when the refrigerant superheat degree on the discharge side of a chiller is less than or equal to a lower limit value. The vehicular heat management system includes: a compressor; a condensing heat exchanger; an expansion valve; an evaporation heat exchanger; and a control part configured to, when a refrigerant superheat degree on a discharge side of the evaporation heat exchanger is lowered to a predetermined lower limit value or less, control, step by step, at least two devices directly involved in the increase and decrease of the refrigerant superheat degree to increase the refrigerant superheat degree until the refrigerant superheat degree exceeds the lower limit value.
    Type: Application
    Filed: July 30, 2021
    Publication date: June 8, 2023
    Inventors: Dae Yeop JEONG, Chul Soon KIM, Sang Jun YOO, Hong Rae JUNG, Tak Jun KIM, Goong Jun NAM, Hee Jin RYU, Jae Woo LEE